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(No Model.) '2 Sheets-Sheet 1.

L. C. RICE.

DYNAMO ELECTRIC MACHINE.

No. 588,602. Patented Aug. 24, 1897.

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(No Model.) 2..S1 1eets-Sheet 2,

L. C. RICE. Y DYNAMO ELECTRIC MACHINE.

N0. 588,602. Patented Aug. 24,1897.

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. armature; and Fig. 8 is a To all whom it concern: I

G. RICE, a citi.

' UNITED'A STATES *PATENT OFFICE.

LEWIs'c. RICE, OF sr. LOUIS, MISSOURI, ASSIGNOR OF ONE-HALF To THE WILLIAM YELLIsON a SONS MANUFACTURING COMPANY, OFv

SAME PL'ACE.

-DvNAMo-ELCTRIC MACHINE.

'SPECIFICAIIO'N forminge part of Letters PatentNo. 588,602, dated August 24, 1897.

I Application iiled November 4,1896. Serial No. 611,029.` (No model.)

Be it known that I, LEWIS zen of the United States, residing. at thecity of St. Louis, in the State of Missouri, have invented a certain new 'and useful Dynamo- Electric Machine, of which the following isA and exact description as' will enable any one skilled in the art to which such a` lfull, clear,

it appertains to make and use the same, ref'- erence being had"to the accompanying drawings, forming part of .this specification.

The principal object of my invention is to construct adynamo-electric machine or Ino` tor in which both the armature and the coils of the f'eldmagnets shall be stationary.

My invention consists in the various novel features and details of construction set forth Y A is a longitudinal vertical section.

"low cylindrical respectively', around which are placed fieldin the,claims aiiixed hereto.

-In the accompanying drawings, which illus# trate a dynamo or motor embodying my im. vention, Figure 1 is a side elevation. Fig. 2 is an-.end view. Fig. 3 is a detail view'of the commutator. Fig. 4 is an enlarged sectional view showing-a detail of construction. Fig. Fig. 6 is a section on the line 6 6 of Fig. 5. Fig. .7 is anisometric projection showing a modification of the rotary inductor-magnet, which is interposed between the field-magnets andthe view showing a dein the following specification and pointed out tail of construction. 1

Like marks of reference refer to similar parts in the several views of the drawings. 4

10 and 11 are the two halves of the casing of the dynamo. Projecting from the parts 10 and 11 into the interior of the casing are holprojections-12 and 13, Fig. 5,

magnet .coils 14 and 15, respectively. The

coils 14 and 15 are so wound that the oppas-1 ing ends of the projections 12 and 13 will be of opposite polarity. 16 is a Gramme, Pacinotti, or other suitable dug-armature, which is held in place by a suitable number of bolts 17, which valso connect the two halves 10 and 11 of the casing. The core 18 of the' armature 1.6 is made ina1 .suitablenu'mber of sections-which join, as

shownin Figf8, and are held together by the bolts 17, so that when th said' bolts 17 arev .removed the sections of the armature can be taken apart to give easy access to any coil which may have been injured. As the armature is stationary, to centrifugal force upon the armature-coils, so they need not be irmly bound to the core, as is the case with revolving armatures. On

together by suitable bolts or rivets 19. (Shown in dotted lines in Fig. 8.)

Within the armature 16 is a rotating part which I term a rotary inductor-magnet or posed of two L-shaped pieces of iron 21 and 22, which are separated by a suitable b lokl 23, of compressed fiber, brass, or othqrnonmagnetic "materiaL jections`24 and 25, respectively. The proinders 12 and 13. 'lhe projections 24 and 25 are vof such a size as to revolve freely in the possible resistance to the of magnetic force.- f In Fig. 7is shown a modification of the in- 22 are made U-shaped instead of L-shaped, thus giving the magnet four instead of two poles. From this it will readily'be seen how the magnet can be constructed with any desired number of poles. how the inductor-magnet ymay beormed of laminas or thin sheets of metal to prevent the generation of Foucault currents, which would absorb energy and heat the magnet.

The inductor shafts .27 and 28, preferably madeof'non-mag` netic material, which aresecured in the pro-f jections 24 and 25, respectively, and journaled in bearings carried by the parts 10 and 11 of ley or belt-wheel 29. j of the casing is a sleeve 30, to the end of which is Secured a disk 31, of compressed fiber or other insulatingmaterial, carrying a disk there is no strain due account of this thecoils can be easily re` moved. The lan1ina=l of each section are held 6o Upon the L "shaped" pieces 21 and 22 are formed cylindrical pro- 7o jections 24 and 25 extend into the hollow cyllthe casing. `On the shaft 27 is carried a pul- 9 Secured to the partll Y pole-piece. The inductomnagnet is coinhollow cylinders 12 and 13, but leave as small 7'5'. air-spaces as possible, so as to give the least passage of the lines ductor-magnet, in which the pieces 21 and 8o This View also shows magnet is carried ily-two 9o commutator 32. (Shown in detail in `Fig. 3.) roo 'llie plates offth'c coinmulator 32 areeou nected thus prod uci ug in the armature. what I term a by wires i with the armut-ure .IG. Carried rotatingprogressive[ieldofnmgnetic force. on the shaft 'S and extending 'partly wit-hin Astheinductor-magnet rotates the disk 3G, the sleeve 30 through an opening 3i in the carrying the brushes 37, rotates with it, thus 5 (lisk,3l. and vcoinmutator 32 a sleeve 35, of 'constantly keeping the said brushes at the Y compressed ber' jr otherinsulating material, properpoiuts onthe eommutator to receive Y having'formed 'oir-it a'disk 3G. l 'the current generated in the ariiiatnreb'y the l In thedisk 3G arecarriedtwo carbon-brushes rotating progressive field of magnetic force. 37, Figs'. 1 and 2, which are pressed against From one of the brushes 3 7 the euri-cnt pnsses 7 5 lo the commutator by springs 38 and make conalong one of the wires 40, ring 4l carbon 43, tact .'vith metallic plates 39 on the said disk spring 44, and screw 45 to the line-fire 4G. 36. From the plates 39 two wires 40, Figs. 2 Froml the other brush the current passes l-.lld 5, extend through the disk 36 andsleeve along the other wire 40, ring 41, (xu'bon 43, 3510 two copper rings 4i ,carried on the sleeve spring 44, and screw 5to the wire 47. From So i5 Extending through 'the sleeve 30 are two the wire 47 the current; passes through the coil tubesji, ogcgniprcssedjber or othervinsu- 15, over the wire 4S,aud through the coil-'14 ,lti'ngniate tgil, n 1e f 4 which is shown in deto the. line-wire it. "i fftail'. i1 1 l `ig`. Ine'achof theftubesZ is al It is obvious that many changes may be' Fis pifes'sedagainst one made i'n-the form und construction otl my 85 lspring 44, -held in dynamo without departing from the spirit of i150 acts bindmy invention.A e binding'po sts 45 is Having fuly described my invention, what `line-wire '46, Fig. 1, I claimas new, and desire t o seeureby Letters wire 4 7 leads to one end Patent of the United States, is- 9o From'theoppo- 1. In a dynamo-electric machine 0r motor,

a e -I'S leads'to one astationary armature; a stationary fieldinagniagnet`-co1l 1 -t, and to the- .not or magnets, a rotating indu'ctor-magnet oppositeendiqf thqlcil'l `i`s secured the rehailing poles of opposite'polaritymagnetically .,mniningl end' herne-wired@ `he disk 3G insulated from each other, und a easing com- 9.5 1..,50 andslecye 3 5 'areihelduponthe shaft 2S by a pletely inclosing said armature, field magnet j' 1 int;1 ,t$ 1. Iiylos ni t* the nut -19 the disk 3G or magnets and inductorlnaguctand forming maybe rotj At he'shfaftYS to adj ust the 'part- 'of the magnetic circuit.. l brushs 37 t olly; desiredposition relative to Q I n a .dynamoeleetric machine or motor,

.thefpolgs O Qtheinduetor;magnet. j a. stationary armature-,astationary field magroe 3S f Thedy-nangos'stippdrted by two base-pieces net or magnets, a rotating induetor-magnet, 50' and 51,.,\ vhifeh aije'either formedintegral a slidingmagnetic joint between said indue- "With`;the .parts ldadll'of the. casing or setor-magnet and Iield magnet or magnets, and .i curedtheretoinany suitable manner. a casing completely in closing said armature,

Assnmingthatthe-hollow cylinder-l is of field magnet or' magnets and'indnctor-magx05 4o" positive,poialgityand the cylinder. 13 of neganet. and forming pa rt of thc magnetic circuit. tive polarity, .the operation of my dynamo is 3. In a dynamo-electric machine or motor, .as follox\ rs-:' .'l`.he lines of`magnetie force flow a stationary arn'iature, a stationary Iield'magfrom' 'tho cylinder 1 2. into the projection 24 net or magnet-s, a rotating 'inductor-xnagnet i .end :thencegto the. polejl. From the pole 21 having poles of opposite polarity, said poles no 45' the'lines ofnngnetie force 'flow into the core of 'opposite polarity being magnetically and I1S..of.:the armature', around the -said core, and electricallyinsulated from-each other, slidf into the`.-pole 22. E ronrthe pole 22 they flow ing magnetic joints between said inductorr'tliroughpthc-projection 25 into-the cylinder 13 magnet and the polepieces of said field mag .and thence-:back ,to thecylinder lf3-through net or magnets, andan inclosing'casing formx x 5 5o the. easinglQgand 11, j The rotziting projecing part of the magnet-ic circuittions- 2t and-iiornru'ith the stationary cylin- 4. In a dynamo-electric machine or motor, ders 12 and liihat Lterin a sliding or roa stationary armature,a stationary field magtary iimngneticjoint, through which it will be net. or magnet-s, a rotating inductor-magnet,

secu all-the-.linesof magnetic-force must pass. a stationary commutator, rotating commnta.- 12o' 55 Asthe projections 24 and 25 of the inductor toi-brushes receiving the currentjrom said magnet are within the field-magnet COilS 14; comlnutator, and Stationary brushes rcceiv and 15, they will come within the direct 1l`1 ing the current from said rotating brushes. Hence 0f the Sad 00H5, S0 tht nl? ndlctQl" 5. In a. dynameelectre macliiixe or motr, magnet Will have DCS 0f mgnetlc force ma. stationary armature, a stationary field maox25 6o duced within itself in addition to those gem. net or magnets, a rotating inductolmagnet @rated in the casing 10 and 11 and cylinders; having poles of opposite polarity, said poles l: und 13, formed thereon- AS the induc'wr'. of opposite inmagnet revolves the points at which the lines, sulad from each other sliding magnetic 'f magnetic fome enter and leave the amm' 1joints between said induetor-,magnet and the 13e 65 ture constantlychange with the movement of: i .polpieces of said eld magnet or magnets,

. thr [wle-pieces of the said indactor-magnet, an inclosing casing forming part of the mag.

netic circuit, a stationary colnmutator elec- .trically connected with said armature, re-

volving commutator-.brusles receiving the4 current' from said commutatorgand stationary brushes receiving the current from said rotating brushes. Y

6; 'In a dynamo-electric machine or motor,

l a stationary armature, an inclosingcasing carrying a ield magnet or magnets andl forming part of them'agnetic circnit,' aud a rotating inductor-magne't in'sliding magnetic oo ntact with the pole-pieces of said -Iield magnet of its axial length, axial projections at each.

end of said inductor-fmagnet, magnetic .car-

riers surrounding sad axial projections and netically connecting ism from said stationary forming sliding magnetic joints therewith,

stationary eldmagnet coils surrounding said magnetic carriers, a` stationary ring-armature surrounding said inductor-'magnet, and a casing surrounding said partsand magthe outer ends of said magnetic carriers.

S. In a dynamo-electric machine or motor,

an inclosing casing forming partof the mag' Y machine, a stationary ring-V armature supper e'd within-said casing, pro` netic circuit of the jections on the interior of said casing, stationary field-magnet coils carried tions, anda rotating inductor-magnet having ,pole-pieces of opposite polarity magnetically and electricallyinsulated from each said inductor-magnet rotating within said stationary rin g'A-armature and receiving magnet- Ield-magnet coils.

9. In a dynamo-electric machine or motor,

' an inclosing casing forming part of the magnetic circuit of the machine,

i astationary'ringarmature supported within casing, stationary field-magnet coils carried by said projcctions, a rotating inductor-magnet within magnetically insulated from Aforming a slidingmagnetic J other,

said casing, projections on the interior of said said stationary ring-armature, said inductormagnet having polepieces of opposite polarity each other, and axial projections on said inductor-magnet, said axial projections enteri g the said projections on the interior of the casing and oint therewith.

10. In a dynamo-electric machine or motor, an inclosing casing forming part of the magnetic circuitof the machine, a stationary ringarmaturc supported within said casing, projections on the interior of said casing, stationary field-magnet coils carried by said projections,a rotatingin'ductor-magnet having pole-` pieces of opposite polarity magnetically insulated from-each other, said inductor-magnet rotating wit-hin said stationary rin g-armature and receiving magnetism from said stationary field-magnet coils, a stationary commutator carried by said casing, colnmutator-brus'hes'l 'for said' commutator, said 'comm'utatorQA brushes being carried by Said inductor-magnet and'revolving therewith, and stationary bruslies receiving the current from said rotating brushes.

11.` In a dynamo-electric machine or motor,

an inclosing casing, a' stationary ring-armatu re Within said casing, stationary field-magnet coils also within said casing, a lotating inductor-magnet within said stationm y ringarmature, a stationary comm'utatorcarried by the exterior of said casing, ashaft or'spindle carried by 'said inductor-magnet and rotating therewith, brushes carried by said shaft or spindle and bearing on said commutator, suitable conducting-rings carried bysaid shaft or spindle and electrically connected with. said brushes, and stationary brushes receiving the current from said rings.

In testimony whereof -I have hereunto set my hand and aixed my'seal in the presence of the two subscribing'witnesses,

LEWIS C. RICE. [L. s.] llitnesses: y

E. E. VERNELL, 'A W. A` ALEXANDER. 

